#C4E578#C4E578

#C4E578 is a very light, vivid yellow-green. Relative luminance 0.691; OKLCH L 87.5% C 0.141 H 123.2°. Best body text is #000000 at 14.83:1 contrast (WCAG AA passes).

Color values

HEX	#C4E578
RGB	rgb(196, 229, 120)
HSL	hsl(78, 68%, 68%)
HSV	hsv(78, 48%, 90%)
CMYK	cmyk(14.4%, 0%, 47.6%, 10.2%)
CIE-LAB	lab(86.57, -27.54, 49.27)
CIE-LCH	lch(86.57, 56.45, 119.21°)
OKLab	oklab(87.46% -0.0771 0.1179)
OKLCH	oklch(87.46% 0.141 123.2)
XYZ	xyz(54.1745, 69.1303, 28.2551)
Luminance	0.6913 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C4E578 #9978E5

analogous

#E5CF78 #C4E578 #8DE578

triadic

#C4E578 #78C4E5 #E578C4

tetradic

#C4E578 #78E5CF #9978E5 #E5788D

square

#C4E578 #78E5CF #9978E5 #E5788D

split-complementary

#C4E578 #788DE5 #CF78E5

monochromatic

#90BE25 #AEDB45 #C4E578 #DAEFAB #F1F9DF

Accessibility & contrast

On white

1.42

#C4E578 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.83

#C4E578 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C4E578

14.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C4E578	#FFFFFF	#000000	##000000
##C4E578	1.00	1.42	14.83	14.83
#FFFFFF	1.42	1.00	21.00	21.00
#000000	14.83	21.00	1.00	1.00
##000000	14.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0DA6F

Deuteranopia (green-blind)

#EBD97E

Tritanopia (blue-blind)

#CBDCCC

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #c4e578;
/* rgb */ color: rgb(196, 229, 120);
/* oklch */ color: oklch(87.5% 0.141 123.2);

Tailwind

colors: {
  custom: {
    50: '#d7eda1',
    500: '#c4e578',
    950: '#000000',
  },
}

SCSS

$custom: #c4e578;
$custom-light: #d7eda1;
$custom-dark: #000000;

JSON

{
  "hex": "#c4e578",
  "rgb": {
    "r": 196,
    "g": 229,
    "b": 120
  },
  "hsl": {
    "h": 78.165,
    "s": 67.702,
    "l": 68.431
  },
  "oklch": {
    "l": 0.87464,
    "c": 0.14089,
    "h": 123.2
  },
  "luminance": 0.6913
}

Semantic roles & 50–950 ramp

primary

#C4E578

secondary

#6945BD

accent

#16D04E

background

#FEFEFC

surface

#FBFDF5

border

#D4D5CF

text

#15160F

muted

#848480

Preview Lab

Preview with #C4E578

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →